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Finding the Fourth Proportional to 74,408.64, 102,710.88 and 49,266.24

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Solution

The fourth proportional to 74,408.64, 102,710.88 and 49,266.24 is: 68,005.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.64 : 102,710.88 = 49,266.24 : x
  2. Step 2: Convert to fraction form
    74,408.64/102,710.88 = 49,266.24/x
  3. Step 3: Cross multiply
    74,408.64x = 102,710.88 × 49,266.24
  4. Step 4: Simplify right side
    74,408.64x = 5,060,178,864.69
  5. Step 5: Solve for x
    x = 5,060,178,864.69/74,408.64
  6. Step 6: Final answer
    x = 68,005.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.